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Mend Worcester 350 HW Heating Burner Hot Water

Worcestor 350 HW but no CH?

The burners won't ignite when CH is selected, the demand light comes on but no ignition. When CH is turned off and the hot water tap turned on the burners light and stay on until the tap is closed.

When the burners have lit for the HW, if I turn the CH on the burners go out.

Keith G
January 2010
WorcesterWorcester 350 HWHeating, Home Heating SystemsHeating Burner Hot Water
Thanks for your quick response Ian. I'm actually not using the timer, so must suspect the CH pump. I tried it again this morning and the CH side has fired up, so the fault is intermittent and therefore probably very difficult to diagnose.

Keith G
January 2010
may be a faulty timer or faulty pump. twin pumps on this boiler, one for heating and another for water.

Ian
January 2010

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